How to Switch Energy Suppliers Without the Hassle

Why switch energy suppliers in 2025?

Energy prices have stabilised in 2025, making it a good idea to review your current energy deal. Whether you’re on a standard variable energy tariff, have moved into a new home, or just want a better deal, now is the perfect time to compare energy providers UK and switch.

Switching could save you hundreds of pounds a year and is easier than ever thanks to the UK switch guarantee, which ensures a smooth and timely transition between suppliers. Before switching, make sure to compare energy prices so you can find the best offer for your home or business.

What’s the easiest way to switch energy supplier?

The quickest way to switch energy is through a price comparison website. Here’s how:

1. Enter your postcode and a few details from a recent energy bill.
2. Compare tariffs from leading energy companies.
3. Choose the best option based on price, type (e.g. fixed deal or standard variable tariff), and features like smart meter compatibility.
4. Confirm the switch. Your new supplier will handle everything else.

With the energy switch guarantee, you’ll be moved within 5 working days with no hassle.

What info do I need to switch?

To change your electricity supplier or gas supplier, you’ll need:

• Name of your current energy supplier and tariff
• Your postcode and address
• Payment method (e.g. direct debit, credit meter, or prepayment meter)
• Email address and bank account info (if setting up billing)

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Will I be charged an exit fee?

It depends on your current tariff. Some fixed tariff deals include an exit fee, while others don’t. If you’re on a standard variable tariff, you can switch without penalties.

Always check your contract with your current supplier before switching to avoid unexpected charges.

What happens during the switch?

Once you agree to a new deal, your new energy supplier will:

• Notify your old supplier
• Arrange the switch of your energy supply
• Ask for a meter reading (manual or smart)
• Confirm your switch date
• Close your old account and issue a final bill

There’s no interruption to your energy. Your thermostat, appliances, and meters will work just the same.

How do I find the cheapest deal?

Use a trusted energy supplier comparison UK tool. You can:

• Filter by fixed deal, green energy, or no exit fee
• Compare based on unit of energy costs and daily standing charges
• View reviews and service ratings
• See different tariffs and different rates based on your usage

An app or online tool makes it easy to review options and make the switch. Many offer reminders when your deal is ending. Always be sure to compare energy prices before making a final decision.

What about renters or shared homes?

If you pay the energy bills, you can switch—even if you’re renting. Just check your tenancy agreement or speak to your landlord.

For business premises, the process is similar but may require a tailored commercial quote.

Is switching still worth it with a smart meter?

Absolutely. A smart meter makes switching easier because suppliers can access accurate usage without manual readings.

Smart meters also give you better insights into energy costs, helping you choose a new energy supplier with more tailored tariffs.

How often can I switch?

You can switch as often as you like, but most people review their energy tariff every 12 months or when moving house.

If your fixed deal is ending, it’s a great time to look for a cheaper deal. If you’re on a standard variable tariff, you can switch anytime without penalty.

Remember to compare energy prices regularly to make sure you’re always on the best tariff.

Moving house – what to do about energy?

When moving house, inform your current energy supplier of your change of address. It’s essential to settle your final bill. Research potential new suppliers at your new location and consider switching for better rates. Ensure you provide the new supplier with your move-in date to avoid service interruptions.

Correct as of 14 May 2025

FAQs about switching energy suppliers in the UK

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